Fence-machine



(No Model.)

J. M. PATTERSON.

FENCE MACHINE.

No. 337,989; Patented Mar. 16, 1886.

Wz'bzwse 7 UNITED STATES PATENT OFFICE.

JOHN M. PATTERSON, OF RIDGE FARM, ILLINOIS.

FENCE-MACHINE.

SPECIFICATION forming part of Letters Patent N0. 337,989, dated March 16, 1886.

(S0 model.)

To all whom, it may concern.-

Be it known that I, JOHN M. PATTERSON, a citizen of the United States. residing at Ridge Farm, in the county of Vermilion and State of Illinois, have invented certain new and useful Improvements in Fence-Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to that class of machines used in weaving the pickets between the wires in a combination wire and picket fence.

My invention consists in a twisting-bar provided with friction-rollers placed across the opening in the hub of a twisting-wheel in a fence-machine.

In the drawings, Figure 1 is a perspective View ofthe central portion ofa twisting-wheel, and showing my improved twisting-bar attached in working position. Fig. 2 is a side elevation of the twisting-bar. Fig. 3 is a top plan view of thesame. Fig. 4 is a verticallongitudinal section of the same.

In Fig. 1, A represents the hub of an ordinary spur-gear twisting-wheel.

B is atwisting-bar secured to said hub centrally across the opening in the hub by screwbolts n n and nuts n n, the bolts 12. n passing through lugs m m, built upon the outer surface of the hub A.

a a a a are the arms of the spur-wheel a, being a section showing the cogs of the wheel.

D D, Fig. 2, are friction-rollers inclosed in a framing, B, composed of two metallic plates similar in size and form, longer than their width, and adapted to fit each other closely at the outer portion of their length, and having circular projections vertically on their outer surfaces, and on their inner surfaces recesses formed to admit the friction-rollers D D. The friction-rollers D D are provided with journals i i, which have suitable bearings in the case B, as seen in Fig. 3.

d d are grooves in the circumference of the rollers D D, and are intended to receive and retain the wires used in construction of the fence while in the process of being twisted. The groovesdd are connected with a circular opening, 0, into which the wires can be passed. The openings 0 c are made larger than the Wire, and of sufficient size to allow the splicing or other enlargement of the wire to pass freely.

h h are annular projections on the top and bottom parts of the frame B, and form a portion of the bearings of the friction-roller journals i i.

n n are holes in the frame of the twisterbar through which the bolts n pass, as seen in Fig. 1. V

b b are rivets or bolts, which fasten the two halves constituting the frame B together.

It will be seen that the entire lateral strain of the wires in the process of twisting is received and sustained by the friction-rollers D D, relieving the twisting-bar of the friction made on a fixed surface as the twisting-ma chine is moved forward on the wires in weaving the fence. The friction-rollers constitute revolving bearings for the wires in the process of twisting.

I am aware that a bar with open recesses has been used in connection with a twistingwheel. This I do not claim; but

Vhat I do claim, and desire to secure by Letters Patent, is

1. In a fence-machine, a twisting-bar composed of a frame, B, in two parts, constructed as described, and frictionrollers D D, journaled in suitable recesses in said frame B, and the openings 0, as and for the purposes herein set forth and described.

2. The combination,with the twisting-wheel of a fence-machine, of the twister-bar B, provided with frictionrollers D D.

In testimony whereof I affix my signature in presence of two witnesses.

- JOHN M. PATTERSON. 

